PORT Adelaide defender Tom Jonas admits Saturday's game against St Kilda won't answer many questions about the Power's premiership credentials.

Despite sitting fifth on the ladder, the jury is still out on the Power having won just one game from eight attempts against teams sitting in the top eight at the start of a round.

They have also failed to win three games in a row for almost two years.

Match report: Port Adelaide v St Kilda

Four times this season, the Power have won back to back matches – including heading into last weekend's 23-point loss to seventh-placed Melbourne at the MCG - before failing to break that streak.

With the Saints sitting 11th on the ladder and losing their past two games, Jonas said the Power would be judged on whether they could become consistent.

"It's going to be two or three weeks down the track," Jonas said.

"Ultimately, we feel our game plan holds up and we played some very strong footy early in the year.

"We lost games to quality opposition on the back of poor goalkicking or a very small margin.

"We feel that in big games, our game style does stand up."

Jonas will play the 100th game of his career against the Saints.

The Power had several big names missing from the training track on Tuesday morning.

Three-time club champion Robbie Gray, vice-captain Ollie Wines, defenders Jasper Pittard, Jack Hombsch, Matthew Broadbent and Darcy Byrne-Jones all sat out the session at Adelaide Oval.

"We've got a few sore bodies after the weekend," Jonas said.

"It's still early in the week, so we're just managing those boys."

Star midfielder/forward Chad Wingard arrived at the ground on crutches and with his ankle in a moonboot.

The results of scans on his high ankle sprain are set to be released on Tuesday afternoon, but he's likely to miss a couple of weeks, which would put him in doubt for next weekend's Showdown with top of the table Adelaide.

"I think we're going to find out later today what the prognosis is," Jonas said.

"Hopefully he's alright for this week.

"If that's not the case, then hopefully only one or two."